Vista's answer to PC power woes
 

When it comes to power management on most electronic devices, things are pretty simple. There's "off," and then there's "on."

But computers, particularly those running Windows, have always been more complicated. On is on, of course. For off, though, Windows XP machines offer several options--including hibernate, stand by and shut down.

"Users don't always understand the difference," said Pat Stemen, a program manager in Microsoft's core operating-system division.

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